audio: Update audioPolicyConfiguration version

HAL V7 uses spaces instead of ',' and '|' for delimiting
elements in channel masks, sample rates, and flags lists
in the Audio Policy Manager configuration XML.
The version specified in the APM XML has been updated
from '1.0' to '7.0' in order to reflect this.

The migration script has been updated to change the
version in the XML on update.

Bug: 142480271
Test: m
Change-Id: I92c206dddee6964fc2019fed80435cb8d69dbfe9
diff --git a/audio/7.0/config/audio_policy_configuration.xsd b/audio/7.0/config/audio_policy_configuration.xsd
index 4d224c8..40dc6f2 100644
--- a/audio/7.0/config/audio_policy_configuration.xsd
+++ b/audio/7.0/config/audio_policy_configuration.xsd
@@ -20,7 +20,7 @@
     <!-- List the config versions supported by audio policy. -->
     <xs:simpleType name="version">
         <xs:restriction base="xs:decimal">
-            <xs:enumeration value="1.0"/>
+            <xs:enumeration value="7.0"/>
         </xs:restriction>
     </xs:simpleType>
     <xs:simpleType name="halVersion">